CN212086784U

CN212086784U - Electric appliance box and air conditioner that radiating efficiency is high

Info

Publication number: CN212086784U
Application number: CN202020775297.XU
Authority: CN
Inventors: 赵万东; 于博; 刘畅; 张亚国
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2020-05-11
Filing date: 2020-05-11
Publication date: 2020-12-04
Anticipated expiration: 2030-05-11

Abstract

The utility model provides an electrical apparatus box and air conditioner that radiating efficiency is high. The electrical box comprises a shell, heating components and heat dissipation mechanisms, and is arranged in the shell and comprises a plate body and fins, wherein the heating components are arranged on the plate body, and the rest heating components are arranged on the inner surface of the shell. The utility model provides an electrical apparatus box and air conditioner that radiating efficiency is high, to dispel the heat the mechanism and set up inside electrical apparatus box to set up the fin above that, simultaneously reasonable settlement fin quantity, furthest's increase radiating mechanism's heat exchange efficiency, increase radiating mechanism and to the inside radiating effect of electrical apparatus box, set up fan or high emissivity coating, can further increase heat exchange efficiency, guarantee inside components and parts are at suitable temperature interval internal work, lifting means operating stability.

Description

Electric appliance box and air conditioner that radiating efficiency is high

Technical Field

The utility model relates to an electronic components heat dissipation technical field, especially an electrical apparatus box and air conditioner that radiating efficiency is high.

Background

With the high-speed development of power electronic technology, the heat flux density of electronic components is higher and higher, the heat productivity of electronic equipment is also higher and higher, the traditional air-cooled heat dissipation mode cannot meet the heat dissipation requirement of the electronic equipment, and many electronic equipment have strict requirements on protection level, and a fully-closed shell design must be adopted to ensure the requirements of four-prevention (insect prevention, water prevention, dust prevention and corrosion prevention), so that the heat dissipation difficulty is undoubtedly further increased. In order to solve the problems, in the prior art, a refrigerant radiator is attached to the shell of an electrical box, heat of components in the electrical box is taken away through the refrigerant radiator, and the temperature of the components attached to the shell of the electrical box is greatly reduced, but the scheme can only ensure the heat dissipation effect of the components which are smooth in appearance and attached to the shell of the electrical box, and most of electronic components such as inductors, capacitors and transformers are irregular in shape, have large heat productivity and cannot be directly contacted with the shell of the electrical box, so that heat dissipation cannot be guaranteed, and the equipment can be overheated to have an overheating fault.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem of poor heat dissipation effect of an electrical box in the prior art, the electrical box and the air conditioner which are high in heat dissipation efficiency and capable of increasing the heat dissipation effect of the inner part of the electrical box by using the fins are provided.

An electrical box comprising:

a housing;

the heating component is arranged in the shell;

and the heat dissipation mechanism is arranged in the shell and comprises a plate body and fins, wherein the heating element is arranged on the plate body, and the rest part of the heating element is arranged on the inner surface of the shell.

The number of fins is obtained according to the following formula:

n＝Int[(W+S)/(t+S)]；

wherein: int is a rounding function, W is the width of the plate body, S is the spacing between adjacent fins, and t is the fin thickness.

The value range of the fin thickness t is 0.5mm to 2.5 mm.

The heat dissipation mechanism further comprises a cooling channel, the cooling channel is arranged in the plate body, and two ends of the cooling channel penetrate through the shell and are communicated with the outside of the electric appliance box.

The plate body comprises an cover plate and a base which are mutually buckled, the cooling channel is arranged between the cover plate and the base, and the fins are arranged on the cover plate.

The length of fin is less than the length of plate body, and when the plate body is vertical to be set up, the fin set up in the first half of plate body.

And one or more of the inner surface of the shell, the heating element or the heat dissipation mechanism is/are provided with a high-emissivity coating.

The electric appliance box further comprises a fan, wherein the fan is arranged inside the shell, and the air outlet direction of the fan points to the fins or the plate body.

The heating element is divided into a regular element and a second element according to the shape, the regular element is arranged on the plate body, and the second element is connected with the plate body through a heat transfer mechanism.

The plate body is provided with a first mounting surface and a second mounting surface which are adjacent to each other, the regular component is arranged on the first mounting surface, and the second component is connected with the second mounting surface through a heat transfer mechanism.

The plate body is of a cuboid structure, the top face of the cuboid structure forms the first mounting face, and the side face of the cuboid structure forms the second mounting face.

The material of the plate body comprises aluminum and the material of the cooling channel comprises copper.

The refrigerant flowing in the cooling channel comprises water or refrigerant.

An air conditioner comprises the electrical box.

The utility model provides an electrical apparatus box and air conditioner that radiating efficiency is high, to dispel the heat the mechanism and set up inside electrical apparatus box to set up the fin above that, simultaneously reasonable settlement fin quantity, furthest's increase radiating mechanism's heat exchange efficiency, increase radiating mechanism and to the inside radiating effect of electrical apparatus box, set up fan or high emissivity coating, can further increase heat exchange efficiency, guarantee inside components and parts are at suitable temperature interval internal work, lifting means operating stability.

Drawings

Fig. 1 is an exploded view of an electrical box and an electrical box of an embodiment of an air conditioner according to the present invention;

fig. 2 is a schematic structural diagram of an internal structure of an electrical box according to an embodiment of the present invention;

fig. 3 is a front view of the heat dissipation mechanism of the embodiment of the electrical box and the air conditioner with high heat dissipation efficiency provided by the present invention;

fig. 4 is a side view of the heat dissipation mechanism of the embodiment of the electrical box and the air conditioner with high heat dissipation efficiency provided by the present invention;

fig. 5 is a bottom view of the heat dissipation mechanism of the embodiment of the electrical box and the air conditioner with high heat dissipation efficiency provided by the present invention;

fig. 6 is an explosion diagram of the heat dissipation mechanism and the regular components of the embodiment of the electrical box and the air conditioner with high heat dissipation efficiency provided by the present invention;

in the figure:

1. a housing; 2. a regular component; 3. a second component; 4. a heat dissipation mechanism; 41. a plate body; 42. a fin; 43. a cooling channel; 5. a fan.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

The electrical box as shown in fig. 1 to 6 includes: a housing 1; heating element, set up in the casing 1, heat dissipation mechanism 4 set up in the casing 1, and including plate body 41 and fin 42, part heating element set up in on the plate body 41, the remainder heating element set up in on the internal surface of casing 1, when gaseous through fin 42, hot-air carries out the heat transfer with fin 42, finally with heat transfer to plate body 41 on, utilize fin 42 to increase heat dissipation mechanism 4 at the inside radiating efficiency of casing 1, guarantee heating element and part work in suitable temperature, guaranteed job stabilization nature and reliability.

The number of fins 42 is obtained according to the following formula:

n＝Int[(W+S)/(t+S)]；

wherein: int is an integer function, W is the width of the plate body 41, S is the distance between adjacent fins 42, and t is the thickness of the fins 42, so that the number of the fins 42 is reasonably set, and the heat dissipation effect of the heat dissipation mechanism 4 is maximally improved.

The length H and the width W of the board 41 are related to the space of the electrical box and the number of electronic components.

Examples

The length range H of the plate body 41 is more than or equal to 50mm, the value range of the thickness B is more than or equal to 6mm and less than or equal to 30mm, the range of the width W is more than or equal to 20mm, the range of the height F of the fins 42 is more than or equal to 5mm and less than or equal to 80mm, the length L of the fins 42 is less than H, the range of the thickness t of the fins 42 is more than or equal to 0.5mm and less than or equal to 2.5mm, and the range of the spacing S between the fins is more than or equal to 2.

The value range of the thickness t of the fin 42 is 0.5mm to 2.5 mm.

The heat dissipation mechanism 4 further comprises a cooling channel 43, the cooling channel 43 is arranged in the plate body 41, two ends of the cooling channel 43 penetrate through the shell 1 and are communicated with the outside of the electrical box, a low-temperature refrigerant is introduced into the cooling channel 43, and the low-temperature refrigerant is utilized to absorb heat, so that the heat dissipation efficiency of the heat dissipation mechanism 4 is ensured, the diameter D of the cooling channel 43 is smaller than the thickness B of the plate body 41, and the value range of the diameter D is not less than 4mm and not more than 16 mm.

The plate body 41 comprises an cover plate and a base which are buckled with each other, the cooling channel 43 is arranged between the cover plate and the base, and the fins 42 are arranged on the cover plate, so that the cooling channel 43 is convenient to install.

The length of fin 42 is less than the length of plate body 41, and when plate body 41 was vertical to be set up, fin 42 set up in the first half of plate body 41 utilizes hot-air come-up, and the decline of cold air is kept away from, makes the inside air of electrical apparatus box circulate by oneself to promote the radiating efficiency.

The inner surface of the shell 1, the heating element or one or more of the heat dissipation mechanisms 4 are provided with a high-emissivity coating, the high-radiation coating technology is a surface treatment technology for coating a layer of coating material with high emissivity on the surface of a material or a machine body, the physical and chemical properties of the surface of the original machine body are changed, and the heat dissipation efficiency among the shell 1, the heating element and the heat dissipation mechanisms 4 is improved by utilizing the high-emissivity coating.

The electric appliance box further comprises a fan 5, the fan 5 is arranged inside the shell 1, the air outlet direction of the fan 5 points to the fins 42 or the plate body 41, air flow generated by the fan 5 is utilized to force air to pass through the fins 42 and the plate body 41, the air flow rate inside the electric appliance box is increased, and therefore heat exchange efficiency is improved.

The heating element is divided into a regular element 2 and a second element 3 according to the shape, the regular element 2 is arranged on the plate body 41, the second element 3 is connected with the plate body 41 through a heat transfer mechanism, according to whether the shape of the heating element is regular or not, whether the conditions such as plane, area of plane occupying the surface area of the whole heating element are met or not, the contact between the heating element and the heat dissipation mechanism 4 can meet the heat dissipation requirement of the heating element, when the heat dissipation requirement is met, the heating element is divided into regular element 2 groups and directly arranged on the heat dissipation mechanism 4 for heat dissipation, when the heat dissipation requirement is not met, the heating element is divided into second element 3 groups and fixedly arranged on the inner surface of the shell 1, the second element 3 is connected with the heat dissipation mechanism 4 through the heat transfer mechanism, and a low-resistance heat conduction channel is formed between the second element 3 and the heat dissipation mechanism 4 through the heat transfer mechanism, therefore, heat is effectively transmitted to the heat dissipation mechanism 4 to be dissipated, heat dissipation efficiency is guaranteed, and the problem of poor heat dissipation efficiency in the prior art is solved.

The plate body 41 is provided with a first mounting surface and a second mounting surface which are adjacent to each other, the regular component 2 is arranged on the first mounting surface, and the second component 3 is connected with the second mounting surface through a heat transfer mechanism, namely the plate body 41 is positioned in the middle of the shell 1, and the first mounting surface and the second mounting surface of the plate body have a distance from the inner surface of the shell 1.

The plate body 41 is of a cuboid structure, the top surface of the cuboid structure forms the first mounting surface, and the side surface of the cuboid structure forms the second mounting surface.

The material of the plate body 41 comprises aluminum and the material of the cooling channel 43 comprises copper.

The refrigerant flowing in the cooling passage 43 includes water or refrigerant.

An air conditioner comprises the electrical box.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides an electrical apparatus box that radiating efficiency is high which characterized in that: the method comprises the following steps:

a housing (1);

the heating component is arranged in the shell (1);

the heat dissipation mechanism (4) is arranged in the shell (1) and comprises a plate body (41) and fins (42), part of the heat dissipation mechanism is arranged on the plate body (41), and the rest part of the heat dissipation mechanism is arranged on the inner surface of the shell (1).

2. The appliance cartridge of claim 1, wherein: the number of fins (42) is obtained according to the following formula:

n＝Int[(W+S)/(t+S)]；

3. The appliance cartridge of claim 2, wherein: the value range of the fin thickness t is 0.5mm to 2.5 mm.

4. The appliance cartridge of claim 1, wherein: the heat dissipation mechanism (4) further comprises a cooling channel (43), the cooling channel (43) is arranged in the plate body (41), and two ends of the cooling channel (43) penetrate through the shell (1) and the external part of the electric appliance box.

5. The appliance cartridge of claim 4, wherein: the plate body (41) comprises a cover plate and a base which are buckled with each other, the cooling channel (43) is arranged between the cover plate and the base, and the fins (42) are arranged on the cover plate.

6. The appliance cartridge of claim 1, wherein: the length of fin (42) is less than the length of plate body (41), and when plate body (41) was vertically set up, fin (42) set up in the first half of plate body (41).

7. The appliance cartridge of claim 1, wherein: and a high-emissivity coating is arranged on one or more of the inner surface of the shell (1), the heating element or the heat dissipation mechanism (4).

8. The appliance cartridge of claim 1, wherein: the electrical box further comprises a fan (5), wherein the fan (5) is arranged inside the shell (1), and the air outlet direction of the fan (5) points to the fin (42) or the plate body (41).

9. The appliance cartridge of claim 1, wherein: the heating element is divided into a regular element (2) and a second element (3) according to the shape, the regular element (2) is arranged on the plate body (41), and the second element (3) is connected with the plate body (41) through a heat transfer mechanism.

10. The appliance cartridge of claim 9, wherein: the plate body (41) is provided with a first mounting surface and a second mounting surface which are adjacent to each other, the regular component (2) is arranged on the first mounting surface, and the second component (3) is connected with the second mounting surface through a heat transfer mechanism.

11. The appliance cartridge of claim 10, wherein: the plate body (41) is of a cuboid structure, the top face of the cuboid structure forms the first mounting face, and the side face of the cuboid structure forms the second mounting face.

12. An air conditioner, characterized in that: an appliance box comprising any of claims 1 to 11.